Clean Water Act discharge permit · NPDES IL0052591
RIVERDALE SENIOR HIGH SCHOOL - STP, Port Byron, IL: NPDES IL0052591 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
RIVERDALE SENIOR HIGH SCHOOL - STP, held by RIVERDALE COMM SCHOOL DIST#100, holds NPDES permit IL0052591, which discharges to Unnamed Trib To Canoe Creek. EPA’s file records it issued September 15, 2017 and expiring September 30, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | RIVERDALE SENIOR HIGH SCHOOL - STP |
|---|---|
| Permittee as filed | RIVERDALE COMM SCHOOL DIST#100 |
| NPDES ID | IL0052591 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 15, 2017 |
| Expiration date | September 30, 2022 |
| Address | Port Byron, IL 61275 |
| Receiving water | UNNAMED TRIB TO CANOE CREEK |
| Subwatershed | Zuma Creek (HUC 070900051103) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 9Pollutants on file
- 9Under a numeric limit
- 9With a violation of any kind
- 4With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Oxygen, dissolved [DO] | 5 | 249 | 243 | July 31, 2026 | 96% over the limit |
| Solids, total suspended | 5 | 23 | 3 | March 31, 2016 | 30% over the limit |
| pH | 2 | 10 | 2 | April 30, 2013 | |
| Chlorine, total residual | 1 | 5 | 1 | November 30, 2006 | 7,100% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 16 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 4 | 16 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 16 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 4 | 0 | ||
| Coliform, fecal general | 1 | 4 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IL0052591.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, IL0052591.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID IL0052591 there.
Nearby on the register
- Discharge permits in Port Byron
- Every permit record in Port Byron, A to Z
- Discharge permits in Illinois
- Every permit record in Illinois, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.